[Bug 115194] LCD screen remains blank after Dell XPS M1210 lid is closed and reopened.

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Thu Apr 25 18:11:48 UTC 2019


Matthias Oestreicher <matthias at smormegpa.no> changed:

           What    |Removed                     |Added
                 CC|                            |matthias at smormegpa.no

--- Comment #6 from Matthias Oestreicher <matthias at smormegpa.no> ---
I just browsed around and thought I leave a short note...

I have had this issue since always on my Dell Latitude E7240 with Haswell
i7-4600U (HD4400). Until FreeBSD 11.2-RELEASE I was using the default
/boot/kernel/i915kms.ko since the kms port isn't needed for Haswell graphics.

Though, when I recently upgraded to 12.0-RELEASE I gave graphics/drm-kmod
(12.0) a try and the display now always resumes correctly. It must be an issue
with the old base system i915kms, as it's no longer updated if I'm not totally


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